43542425520 has 240 divisors, whose sum is σ = 159705921024. Its totient is φ = 10543680000.

The previous prime is 43542425503. The next prime is 43542425543. The reversal of 43542425520 is 2552424534.

43542425520 is a `hidden beast` number, since 4 + 3 + 542 + 42 + 55 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8321305 + ... + 8326535.

Almost surely, 2^43542425520 is an apocalyptic number.

43542425520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43542425520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79852960512).

43542425520 is an abundant number, since it is smaller than the sum of its proper divisors (116163495504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43542425520 is a wasteful number, since it uses less digits than its factorization.

43542425520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312 (or 6303 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

The spelling of 43542425520 in words is "forty-three billion, five hundred forty-two million, four hundred twenty-five thousand, five hundred twenty".